PC SOFT

WINDEVWEBDEV AND WINDEV MOBILE
ONLINE HELP

Home | Sign in | English UK
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadApple WatchUniversal Windows 10 AppWindows Mobile
Others
Stored procedures
Deletes all the documents (corresponding to the specified filter) from a collection of a MongoDB database.
Versions 24 and later
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
New in version 24
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
Example
sFilter is string
sFilter = "{ ""name"": ""Andy"" }"
MongoDeleteAll(CollectMDB, sFilter)
// Delete all the contacts whose "FirstName" member is "Robert"

// Search filter
sFilter is string = "{ ""FirstName"": ""Robert"" } "

MongoDeleteAll(gclCollection, sFilter)
Syntax
<Result> = MongoDeleteAll(<Collection> , <Filter>)
<Result>: Boolean
  • True if the operation was performed,
  • False if a problem occurred. ErrorInfo is used to identify the error.
<Collection>: mongoCollection variable
Name of mongoCollection variable representing the collection of the MongoDB database from which the deletion is performed.
<Filter>: Type corresponding to the filter used
Description of filters in MongoDB format that will be applied to select the documents to delete. This filter corresponds to:
  • a document in JSON format, in character string format.
  • a document in BSON format, in buffer format.
  • a variant.
Related Examples:
Native access to MongoDB Unit examples (WINDEV): Native access to MongoDB
[ + ] This example shows how to use the main functions of native access to MongoDB databases: adding data, reading (searching), modifying and deleting data in the database. The example also shows functions for saving files in the MongoDB GridFS data system.
Component : wd240big.dll
Minimum version required
  • Version 22
This page is also available for…
Comments
Click [Add] to post a comment